A woman cries as she cannot find her 4-year-old daughter and husband on the top of the ruins of a destroyed school in earthquake-hit Beichuan county, Sichuan province, May 17, 2008. Thousands of Chinese fled to the hills on Saturday amid fears a lake formed near the epicentre of this week's earthquake would burst its banks. The water level at the lake formed after aftershocks blocked a river was rising rapidly in Beichuan and "may burst its bank at any time", the official Xinhua news agency said. [Agencies]